diff --git a/.travis.yml b/.travis.yml
index 162896e..aad03e7 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -5,6 +5,7 @@ go:
   - "1.14"
   - "1.13"
   - "1.12"
+  - "1.11"
 env:
   - GO111MODULE=on
 install: